Revision 50:8e692841213c, committed 2015-08-31

Comitter:

Bobty

Date:

Mon Aug 31 08:58:07 2015 +0000

Parent:

49:2fc406e2553f

Commit message:

Added setName and getName to allow hostname to be changed

Changed in this revision

diff -r 2fc406e2553f -r 8e692841213c EthernetInterface.cpp
--- a/EthernetInterface.cpp	Thu Mar 12 16:58:57 2015 +0000
+++ b/EthernetInterface.cpp	Mon Aug 31 08:58:07 2015 +0000
@@ -40,6 +40,8 @@
 static Semaphore netif_linked(0);
 static Semaphore netif_up(0);
 
+static char myName[33];  // holds the name, when setName() is called.
+
 static void tcpip_init_done(void *arg) {
     tcpip_inited.release();
 }
@@ -153,4 +155,21 @@
     return networkmask;
 }
 
+int EthernetInterface::setName(const char * myname) {
+    strncpy(myName, myname, 32);
+    myName[32] = '\0';  // be sure it is NULL terminated.
+    // make the name 'safe'
+    for (int i=0; i<32 && myName[i]; i++) {
+        if (!(myName[i] >= '0' && myName[i] <= '9')
+        &&  !(myName[i] >= 'A' && myName[i] <= 'Z')
+        &&  !(myName[i] >= 'a' && myName[i] <= 'z'))
+            myName[i] = '-';
+    }
+    netif_set_hostname(&netif, myName);
+    return 0;
+}
 
+char* EthernetInterface::getName() {
+    return netif_get_hostname(&netif);
+
+}

diff -r 2fc406e2553f -r 8e692841213c EthernetInterface.h
--- a/EthernetInterface.h	Thu Mar 12 16:58:57 2015 +0000
+++ b/EthernetInterface.h	Mon Aug 31 08:58:07 2015 +0000
@@ -79,6 +79,26 @@
    * \return a pointer to a string containing the Network mask
    */
   static char* getNetworkMask();
+  
+  /** setName 
+  *
+  * Set the network name for this device. Apply this before
+  * calling 'connect'.
+  *
+  * \param myname is the name to assign for this node. 
+  *        Only the first 32 characters will be used if the 
+  *        name is longer.
+  *        Only '0'-'9', 'A'-'Z', 'a'-'z' are accepted,
+  *        any others are converted to '-'.
+  * \return 0 on success, a negative number on failure.
+  */
+  static int setName(const char * myname);
+  
+  /** Get the hostname
+  * \return a pointer to a string containing the hostname
+  */
+  static char* getName();
+
 };
 
 #include "TCPSocketConnection.h"